Home / 12,303,666.89-16,979,546.02-7,076,666.73

Finding the Fourth Proportional to 12,303,666.89, 16,979,546.02 and 7,076,666.73

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Solution

The fourth proportional to 12,303,666.89, 16,979,546.02 and 7,076,666.73 is: 9,766,079.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303,666.89 : 16,979,546.02 = 7,076,666.73 : x
  2. Step 2: Convert to fraction form
    12,303,666.89/16,979,546.02 = 7,076,666.73/x
  3. Step 3: Cross multiply
    12,303,666.89x = 16,979,546.02 × 7,076,666.73
  4. Step 4: Simplify right side
    12,303,666.89x = 120,158,588,410,237.92
  5. Step 5: Solve for x
    x = 120,158,588,410,237.92/12,303,666.89
  6. Step 6: Final answer
    x = 9,766,079.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.